I just got an iPhone unlocked so I could use it with TMobile. They were extremely helpful with getting me the right SIM card and setting up the phone. A few days later it stopped working and I ended up having to get it exchanged. This was the third store I went to for help. The customer service was amazing. They did everything possible to try to make it work and even called the Apple store for me to see how I could go about exchanging it. They were a lifesaver! By far the most helpful TMobile store I've been to!